C$ 220 Find Cheap Flights from London to California

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to California departing on 16/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to California

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to California, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to California, as well as popular online travel agencies
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Best California Flight Deals from London

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Los Angeles
Los Angeles1 stopC$ 333
San Francisco
San Francisco2 stopsC$ 344
San Diego
San Diego1 stopC$ 433
Palm Springs
Palm Springs1 stopC$ 481

Cheap Flight Deals from London to California (YXU-USCA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to California that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from London to California

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from London to California.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
WestJet Logo
6:00 a.m. - 2:12 p.m.YXU-LAX
11h 12m1 stop
WestJet Logo
6:05 p.m. - 5:14 a.m.LAX-YXU
8h 09m1 stop
C$ 333WestJet
Find Deal
Thu, 19 Jun - Sun, 6 Jul
WestJet Logo
6:00 a.m. - 1:59 p.m.YXU-SFO
10h 59m2 stops
WestJet Logo
2:45 p.m. - 5:14 a.m.SFO-YXU
11h 29m2 stops
C$ 344WestJet
Find Deal
Tue, 1 Jul - Wed, 30 Jul
WestJet Logo
6:00 a.m. - 12:05 p.m.YXU-SFO
9h 05m1 stop
WestJet Logo
2:45 p.m. - 5:14 a.m.SFO-YXU
11h 29m2 stops
C$ 346WestJet
Find Deal
Tue, 1 Jul - Wed, 30 Jul
WestJet Logo
6:00 a.m. - 12:05 p.m.YXU-SFO
9h 05m1 stop
WestJet Logo
7:30 a.m. - 7:09 p.m.SFO-YXU
8h 39m1 stop
C$ 347WestJet
Find Deal
Tue, 1 Jul - Tue, 15 Jul
Air Canada Logo
6:15 a.m. - 10:33 p.m.YXU-LAX
19h 18m2 stops
Air Canada Logo
12:08 a.m. - 2:57 p.m.LAX-YXU
11h 49m2 stops
C$ 359Air Canada
Find Deal
Thu, 19 Jun - Sat, 5 Jul
Air Canada Logo
9:55 a.m. - 2:33 p.m.YXU-LAX
7h 38m1 stop
Air Canada Logo
12:08 a.m. - 2:57 p.m.LAX-YXU
11h 49m2 stops
C$ 377Air Canada
Find Deal
Thu, 19 Jun - Sat, 5 Jul
United Airlines Logo
3:45 p.m. - 10:55 p.m.YXU-LAX
10h 10m2 stops
United Airlines Logo
11:59 p.m. - 3:04 p.m.LAX-YXU
12h 05m2 stops
C$ 408United Airlines
Find Deal
Mon, 5 May - Mon, 12 May
United Airlines Logo
6:15 a.m. - 11:05 a.m.YXU-SFO
7h 50m1 stop
United Airlines Logo
11:15 p.m. - 2:58 p.m.SFO-YXU
12h 43m2 stops
C$ 408United Airlines
Find Deal
Tue, 13 May - Mon, 9 Jun
 Logo
6:00 a.m. - 12:05 p.m.YXU-SFO
9h 05m1 stop
 Logo
9:02 p.m. - 5:14 a.m.SFO-YXU
29h 12m2 stops
C$ 522
Find Deal
Sat, 17 May - Thu, 22 May
 Logo
12:20 p.m. - 12:42 a.m.YXU-SAN
39h 22m3 stops
 Logo
8:48 p.m. - 5:14 a.m.SAN-YXU
29h 26m3 stops
C$ 567
Find Deal
Fri, 18 Apr - Wed, 7 May

KAYAK's insights & trends for London to California flights

Get data-powered insights and trends into flights from London to California to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest time of day to fly to California?

The average price for all round-trip flights from London to California depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to California is generally in the evening, when round-trip flights cost C$ 346 on average. Morning departures are around 18% more expensive than evening flights, on average. The most expensive time of day to fly to California is generally in the morning, which is peak travel time and where the average cost of a ticket is C$ 409.

What is the cheapest month to fly from London to California?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to California, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from London to California is November, when tickets cost C$ 421 (return) on average. On the other hand, the most expensive months are June and April, when the average cost of round-trip tickets is C$ 729 and C$ 676 respectively.

How far in advance should I book a flight from London to California?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London to California, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below-average price on the flight from London to California, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low season

February

High season

January

Cheapest flight

C$ 220
Best time to beat the crowds (24% less expensive on average)
Most popular time to fly (4% more expensive on average)
Flight from London to Los Angeles

FAQs - booking California flights

  • How does KAYAK find such low prices on flights from London to California?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to California.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to California?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London to California is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to California?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from London to California with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to California?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from London to California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 3 airlines serving from London to California

 
See real verified KAYAK customer reviews for airlines flying from London to California. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to California? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8615 reviews
7.3Comfort
7.0Entertainment
7.7Boarding
6.6Food
8.1Crew
Airline reviews

The gate was too far away for the connecting flight

8.0 ExcellentAnonymous, Mar 2025LAX - SFO
Read more United Airlines reviews

The gate was too far away for the connecting flight

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

We tried to upgrade to economy premium but were told this was not possible as we had booked through United Airlines (and Air Canada was operating the flight). This seemed silly given there was ample space in economy premium. Additionally, we had to wait almost 1.5 hours upon arrival to taxi to the gate. Otherwise, the crew were very pleasant and passengers were friendly.

It was my first time with United Airlines and I would say it was very good experience and best of all the flights were on time. Will definitely fly with United Airlines next time.

headphone jack didnt work for the first flight and not much variety

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Fantastic crew. Flight was delayed at last minute but we were given updates every 20 minutes and the crew was so friendly and considerate. I miss the touch screens on the back of the seats, wish they would bring that back though.

Beijing PEK to SFO. I had an economy seat on this flight. The seat comfort was acceptable. My main complaint is with the FA’s lack of personality and absence from servicing the plane, specifically restroom care (I wish I could share a pic of the restroom that I captured) and care of travelers—drink cart/availability of drinks. I'm amazed at the level of service on other International travel where a passenger is most often appreciated.

Great. Food going from Australia to the US was better than other way around, but still needs improvement in terms of quality and quantity!!!

We never had an experience they canceled the flight and they did not offer us an alternative flight. I had to book one on my own expense. They offered us food voucher and we could not use them at the airport it kept saying not attached to an existing flight. The people at the counter were rude and cold and they did not care about our situation

It took 30 minutes to check in with the Westjet rep. They didn’t have enough seats and she needed to make a call… I am always “randomly” selected to be checked at security. Their “randomly “ selection system may need some updating. They treat people like criminals. It is not appropriate behavior.

Found the seats very crowded—too close together ! And waited a long time for our luggage All staff at both ends were excellent!!!

Flight cancelled and Kayak switched our return flight to a red eye. Ridiculous.

Will never book through you again. Very disappointed in the notices and action taken or provided when planes are rescheduled, enough to cause missed connections

Very good over all , would have been nice to have entertainment on the flight

Absolutely the worst airline I have ever taken. They lost my baggage and told me my bag tags had been cancelled. When my bags arrived days later I had to pick them up at 3:15 am. My return flight was delayed another 6 hours and they broke my bag. Westjet does nothing to try and make it a better customer experience and all the customers services representatives I spoke with were useless and incompetent. Never flying westjet again.

Easy self checkin and baggage drop. No in seat entertainment, but wifi and app worked well

Single flights to Cancun purchased through third-party, initially had issues printing luggage labels with the lady at the airport Pearson… Was super friendly and assisted quickly despite being very busy

Very old planes. Seats were not comfortable. Air was not on during the flight leading to incredibly stuffy conditions.

Ensure prepaid food arrangements are appropriately understood by flight crew of who purchased and who did not

Mixed experienced. Nice staff. Spacious 787 better than cramped Airbus, though my seat was broken. The bad: Way overpriced ticket and charged for food despite 6 hr flight.

Terrible all around. Flight was late and airplane was very uncomfortable. The crew were unhelpful and hid in the back. Did zero work. No entertainment.

I booked and paid extra for exit door seats also pre paid for my luggage air Canada changed plains and I never got what I paid for and they made me pay for luggage again they also did this to my wife. They are the most unorganized company I have ever dealt with. I am sure I will never see the extra money I paid for the seats or the recharge for the luggage. They are subsidized by the taxpayers and don’t give a dam just a horrible way to do business

Your crew was so so so wonderful Only thing sound be great if you kept some phone chargers and converters rest 👌👌👌👌

Delayed 3 hours. Gave us a food voucher for CA$15, to places that were already closed or not serving food. New plane did not have entertainment options. When disembarking, they had closed the direct route to baggage claim, rerouting us through another terminal 0.5miles away. Overall, a terrible experience.

The speakers were way too loud. Music was played during boarding too. This noise could've been avoided.

The flight was delayed for 4 hours and the airplane was really old cuz not one thing was working.

Multiple change of the gates at Pearson, delayed flight was extremely uncomfortable.

Never made this leg of the flight since we rebooked through United instead. Did not make it to immigration/US custom due to the delay. Had to spend the night on our own dime in Toronto

Everything you need to know for your flight from London to California

Information on your arrival and departure airports

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